Wattenberg, Ben J
The real America : a surprising examination of the State of the Union
Doubleday, 1974
 Buku Teks SO
Ballard, Robert D.
Exploring our living planet
National Geographic Society, 1983
 Buku Referensi
Ahrens, L.H.
Distribution of the element in our planet
McGraw-Hill, 1965
 Buku Teks SO
Margulis, Lynn, 1938-
Symbiotic planet: a new look at evolution
Basic Books, 1998
 Buku Teks
Novak, Brenda. author
Right where we belong = Dimana pun bersamamu
PT Gramedia Pustaka Utama, 2018
 Buku Teks SO